From e834122e08f8f02588801b04b5e852aaae9fe638 Mon Sep 17 00:00:00 2001
From: Karina <karinyash96@gmail.com>
Date: Mon, 22 Dec 2025 02:47:27 +0400
Subject: [PATCH] some minor stuff; good night

---
 kernel/data/font8x16.c       | 4 +++-
 kernel/include/idt.h         | 6 +++++-
 kernel/src/modules/console.c | 2 +-
 kernel/src/modules/panic.c   | 4 ++--
 4 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/kernel/data/font8x16.c b/kernel/data/font8x16.c
index 0fce1ca..d005f58 100644
--- a/kernel/data/font8x16.c
+++ b/kernel/data/font8x16.c
@@ -1,4 +1,6 @@
-// borrowed from https://github.com/hubenchang0515/font8x16/blob/master/font8x16.h
+// font8x16 bitmap font
+// Source: https://github.com/hubenchang0515/font8x16
+// License: MIT
 
 unsigned char font8x16[][16] = {
     { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  },       //0x00, 
diff --git a/kernel/include/idt.h b/kernel/include/idt.h
index af3aeec..01172e2 100644
--- a/kernel/include/idt.h
+++ b/kernel/include/idt.h
@@ -1,3 +1,5 @@
+#ifndef IDT_H
+#define IDT_H
 #pragma once
 #include "types.h"
 
@@ -16,4 +18,6 @@ typedef struct {
     u64 base;
 } __attribute__((packed)) IDTPtr;
 
-void idt_init();
\ No newline at end of file
+void idt_init();
+
+#endif
\ No newline at end of file
diff --git a/kernel/src/modules/console.c b/kernel/src/modules/console.c
index 9e078ca..f435c65 100644
--- a/kernel/src/modules/console.c
+++ b/kernel/src/modules/console.c
@@ -115,7 +115,7 @@ static void print_hex(u64 u) {
     while (u > 0) {
         i32 digit = u % 16;
         if (digit < 10) { buffer[i] = digit + '0'; }
-        else { buffer[i] = digit - 10 + 'a'; }
+        else { buffer[i] = digit - 10 + 'A'; }
         u /= 16;
         i++;
     }
diff --git a/kernel/src/modules/panic.c b/kernel/src/modules/panic.c
index 365a1f7..a79bdb9 100644
--- a/kernel/src/modules/panic.c
+++ b/kernel/src/modules/panic.c
@@ -53,8 +53,8 @@ __attribute__((noreturn)) void panic(Registers *regs) {
     kprintf("\n\n");
     kprintf("\t\t\tKERNEL PANIC  :( \n");
     kprintf("\t\t-------------------------\n");
-    kprintf("\t\tCPU EXCEPTION: %d (%s)\n", regs->int_no, exception_messages[regs->int_no]);
-    kprintf("\t\tError Code: %x\n", regs->err_code);
+    kprintf("\t\tCPU EXCEPTION: %s (%d)\n", exception_messages[regs->int_no], regs->int_no);
+    if (regs->err_code) kprintf("\t\tError Code: %x\n", regs->err_code);
     kprintf("\t\tInstruction Pointer (RIP): %x\n", regs->rip);
     kprintf("\t\tCode Segment (CS): %x\n", regs->cs);
     kprintf("\t\tFlags (RFLAGS): %x\n", regs->rflags);